Decide Which of the Two Given Functions Is Linear and Find

question 104

Essay

Decide which of the two given functions is linear and find its equation. $$\begin{array} { | l | l | l | l | l | l | } \hline \boldsymbol { x } & 0 & 1 & 2 & 3 & 4 \\\hline f ( x ) & 5 & 2 & - 1 & - 4 & - 7 \\\hline \boldsymbol { g } ( \boldsymbol { x } ) & 5 & 3.5 & 2 & 0.5 & 0 \\\hline\end{array}$$ ​
Please enter your answer as an equation of a linear function.

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Definitions:

Extracellular Antigens

Foreign substances outside cells that trigger an immune response.

B Cells

A type of white blood cell that plays a key role in the immune response by producing antibodies against antigens.

Antibody-Mediated Immunity

Immunity due to B cells and the production of antibodies.

Cell-Mediated Immunity

Immunity due to the actions of T cells and null cells.